Function virtio_pci_devargs_parse

dpdk/drivers/net/virtio/virtio_pci_ethdev.c:164–192

#define VIRTIO_ARG_VDPA       "vdpa"

static int
virtio_pci_devargs_parse(struct rte_devargs *devargs, int *vdpa)
{
	struct rte_kvargs *kvlist;
	int ret = 0;

	if (devargs == NULL)
		return 0;

	kvlist = rte_kvargs_parse(devargs->args, NULL);
	if (kvlist == NULL) {
		PMD_INIT_LOG(ERR, "error when parsing param");
		return 0;
	}

	if (rte_kvargs_count(kvlist, VIRTIO_ARG_VDPA) == 1) {
		/* vdpa mode selected when there's a key-value pair:
		 * vdpa=1
		 */
		ret = rte_kvargs_process(kvlist, VIRTIO_ARG_VDPA,
				vdpa_check_handler, vdpa);
		if (ret < 0)
			PMD_INIT_LOG(ERR, "Failed to parse %s", VIRTIO_ARG_VDPA);
	}

	rte_kvargs_free(kvlist);

	return ret;
}

static int eth_virtio_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
	struct rte_pci_device *pci_dev)